Maximum-capacity car



Mmh 17, 1925.

D. HINDAHL MAXIMUM CAPACITY'CAR Flled July 5. 1924 Patented Mar. 17,1925.

UNITED STATE/S 1,530,263 PATENT OFFICE.

DAVID I-IKINDAHL, OF CHICAG, ILLINOIS, ASSIGNOR TO H. STILLSON HART, F

. CHICAGO, ILLINOIS.

MAXIMUM-CAPACITY CAR.

application ined .Tiny 3,

To aZ'Z 107mm t may con-cera.'

Be it known that I, DAVID HINDAHL, a citizen of the United States,residing at Ghicagoin the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Maximum-Capacity Cars,of which the following is 'aspeciiication. The present invention relatesto maximum capacity cars. I t

More particularly the present invention relates to the construction ofrailway dump cars. Cars of this sort are commonly designed to depositlading selectively outside l5 of the tracks or between the tracksbetween the trucks, which trucks are located adjacent to the two ends ofthe cars. If the lading to be depositedl is relatively heavy, such, forexample, as rock ballast, the carrying capacity vfor such lading islimited not by the bulk thereof but by the weight. Ballastcars in commonuse limit the amount of rock ballast or other heavy ballast to that`which may be carried by said car at regions from which dumping may bevconveniently accomplished between the trucks. Inasmuch as the distancebetweenthe trucks is limit-ed by certain specifications, a problem whichhas presented itself to designers of cars of this sort has been to sodesign the parts that a maximum of ballast upr to Vthe limit of weightmay be carried without sacrificing the advantages ofconvenient dumpingand without sacrificing adaptability for the car for carrying lighterlading. KVCertain*types of ballast cars which have been designed arequite inefficient when it isdesired tocarry other lading such as coal,which is lighter in weight, inasmuch as said cars do not economicallyutilize the space over trucks.

the

The present invention relates'to the sameV car for` carrying a maximumofjheavy lading, such as rock ballast, which should be 1924. Serial No.723,861.

deposited selectively between the rails or outside of said rails and forcarrying lading such as coal, which need not be dumped between therails.

Further objects will appear as the description proceeds.

Referring to the drawingsp Figure l is a longitudinal sectional view ofa railway dump car embodying the principles of the present invention;and Figure 2 is a transverse sectional view taken along the planeindicated by the line 2 2 of Figurev The numeralv l indicates a dump carliaving the sidewalls 2-2 and end walls, one of which is indicated bythe numeral 3.

Trucks, one of which is located adjacent to each end of the car, areillustrated diagrammatically by the wheels thereof, which wheels areindicated by the numerals 4-4. According to the illustrated embodimentof the present invention, the car is provided with dumpingmechanismlocated between the trucks, said dumping mechanism comprising doors, oneof which is indicated in part of its length in Figure l, said doorbearing the numeral 5. Said doors 5 are mounted for swinging movementabout axes disposed longitu-dinally of the car. Y

The mechanismgand arrangement of the dump doors between the trucksneednot be illustrated or described, inasmuch as dump-V ing mechanism forthe purpose is well known. It will -be` sullicient to state that thedumping mechanism between trucks will preferably permit the selectivedumping either between the rails upon which the car is mounted oroutside of said rails.

Each end of the car is provided with a 'sloping floor 6, which floors 6slope toward the adjacent ends of the doors 5, that is to say, saidfloors 6 6 are so sloped that lading' located abovel said floors willtend to move toward said doors 5 when said doors are opened. Said floorsshould be dispos-ed at such an angle relative to a Yhorizontal planethat such lading as rock ballast will flow therefrom, that isV to say,the angleV should be such that the force of gravity acting upon rockballast located above said `floors will besufficient to overcome theresistance to flow due to Contact between the floors 6-6 and the ballastresting thereon.

For this purpose it has been found by eX- periment thatthe angularity ofthe floors 6 6 relative to a horizontal plane may be approximately'l'degrees with the car standing upon a horizontal track, in case said caris intended for the carrying of rock ballast.

nt each end of the car above the trucks is a floor indicated by thenumeral 7. rlfhe details of construction of the floors T'do not form apart of the presentinvention, but said floors should be so designed asto permit the discharge of lading therefrom tothe sides of the caroutside of the rails. Any preferred design of floor may be used, many ofsuch designs being lnown tothosen skilled in the art. According to theillustrated 'embodiment of the present invention, thef'floors 7 maycomprise sloping!portionsfor directing lading laterally ofthe car, saidsloping portions having their apex alongthe line marked by the angle 8.I Swinging vside doors 9 9 may be provided, controlled ina-'ny preferredway, forpermitting ladingto Ylow from said floors 7 to the sides of thecar.

Cooperatingwit-h each sloping floor 6 is thereversely sloping floor or-wall 10, which floors 10 10-are:provided for the purpose ofsupporting-lighter lading at the ends of the car. Each sloping floor 6extends to al line disposedtransverselyv of the cai-,which line liesnear'the top ofthe ca'r above the Correspendingv truckindicated by thewheels 4 11. In the illustrated embodiment of the presentinvention thetop of each 'floor 6 lies ina vertical plane substantially midwaybetween the wheels/1 4 of its adjacent truck. rlhe'upper edge of eachlioor 6 will be provided with'an angle 11,-/one flange of whichunderliesthe corresponding floor 6 and the other lian-geof whichv extendsupwardlytoward the vertical transverse centralplane ofthe car. Saidang-lesg11 11deline the limits, longitudinally of the car, of the lading carriedcentrally-of said car, the outline of which lading is indicated by thenumeral 12.

The numeral 13 indicates a bolster eom prising -the twochannels 13 1i3-.Said bolster ismade use 'of insupporting the corresponding slopinglioorlO. Mounted above. and below said bolster 13 are the transverselyextending steel vplates 11i and 14X, the upper of which carries thetransversely extending steel angular memberl. Said angular member lhas`a portion engaging with the steel plate 111, preferably riveted to saidplate and to the bolster 13,and another portion extending in ythedirection of the floor 10. Rivetedto eaclrfioor 10 and to thecorresponding angular member 15 "is the plate 16, which has a portion1'6a lying in a plane parallel toand adjaeentto the plane'of thecorresponding floor`1'0. Each plate 16 also has a portion 16b lying in avertical plane, having edges conforming to the floors 7 7 and to theside doors 9 9.

Said angular member 15 a-ndplate 16 effectually prevent the zlold-gmentof'lading in the space between the floor 10 and the fioor 6. Eachsloping floor 10 is secured to the corresponding slopingfloor 46by'ineans of anangle 17, which may be riveted to said floors. lUnderlying each of the sloping lioors 10 are braces 19, which mayconvenientlytake the form of angles riveted to the corresponding floors10. Said angles may be bent at their lower ends, as indicated by thenumeral 20, and may be riveted to the corresponding angularlmember 15,the corresponding plate 16 and correspond ing floor 10. e

ln operation, when it is desired to use the car for carryingrockballa'storv other heavy lading, said heavy lading will be deposited in the careentrally thereof, being carried by the bottom portion between thetrucks and i by the sloping lloors 6 6, said heavy lading assu-ming vanangle of repose, which may be indicated by the broken line12. The angles11 11 at the Vtops of the two sloping-floors 6 6 are useful instoppingthepassage of ff ballast beyond the-endsvof said floors 6 6.Dumping of the ballast or other lading between the floors 6 6 will beaccomplished by manipulation of the dumping mechanism at the bottom ofthe car, which dumping mechanism includes the `dump door 5. When the'car is tobe used for the `purpose of carrying lading which need not 'bedumped between the tracks the entirercar between the end walls 3 3thereofmay be filled with suchlading, only a small portion of the carbetween thev sloping floors 6and 10 at eachend of the car beingunusedaat this time. Thatl portiony off the'lading which is located onand` between thesloping 'floors 6 6 will be dumped through thedumpingvmechanism including the doors-5 5. Hrlhat part of such lading which islocated between the floors '6 6 and theends ofthe car will be directedthrough the swing-ing, doors 9 9 (Figure 2). flhe' car-illustrated--anddescribed' will-*shed all of1 the lading, whereby a maximum ofconvenience in handling is obtained. Furthermore, due' to= the if factthatthe car is ofall -steel construction, a minimum of space will beutilized for the material ofthe car and a vmaximumof sturdiness will behad. A

Though a preferred embodiment vof the present invention has beendescribed in detail, it will ybe clear that many modifications may bemade without departing from the spirit of the invention. It is intendedin this patent to cover all such modifications that fall within thescope of the 'appended claims.

What is claimed is: I p

1. In a dump car, ingcombination, a sloping steel floor for directingladingc'entrally of said car, and a sloping steel Vwallhav'ir'igabutting relationship with the under side or said Hoor for directinglading to a region adjacent to an end of said car, said sloping floorbeing extended to a region materially above said sloping wall, the underside of said sloping wall being provided with bracing angles, bolstermea-ns extending transversely of said car at a region-adjacent to thebottom portion of said sloping wall, said sloping wall, angles andbolster means being riveted together to form a sturdy construction.

2. A dump car for efficiently carrying either relatively heavy orrelatively light lading, comprising a car body having a truck adjacentto an end thereof, dump means disposed centrally of said car, a slopingsteel Hoor above said truck for directing lading to said dump means,means providing a receptacle at said end of said car beyond said slopingfloor, said receptacle including a' floor for directing lading laterallyof the car and a steel wall abutting against the under side of saidiioor in angular relationship thereto, said last mentioned floor andsaid wall belng provided with angular connecting means, said car beingprovided with bolster means extendin transversely of said car at regionsadjacent to the bottom portion of said sloping wall, said sloping wall,angles and angular connecting means being riveted together to form asturdy construction.

3. A car of the class described having verrtical sides and ends,intermediate inclined floors extending from a point adjacent to theinner ends of the trucks upwardly toward the ends of the car, slopingfloors ex-k tending upwardly from a point adjacent to the bolster to apoint intermediate of the ends of said intermediate inclined floors, aflanged member for connecting .the lower ends of said sloping floors tothe bolster cover plate, said member having an upper liange having anincline corresponding to that of the sloping floor, a vertical flange,and a flange at right angles to said vertical flange for `connectingsaid member to the bolster cover plate.

Signed at Chicago, Illinois, this 23rd day of June, 1924.

DAVID HINDAHL.

